PWA-10133-1, PWA10133-1, WWII Warbird Pratt Whitney Engine Tool

WWII Warbird Pratt & Whitney Engine Special Tool. P/N PWA-10133-1. Unsure of type of engine it is used on, (R-1340, R-2800, R-985, R-1830 or ...), or the function it performs. Very heavy tool in good condition.